It's GLUE OBJECT TO LIMB
Type that in editor and hit F1 to get context help. Looks detailed enough to me;
Quote: "
GLUE OBJECT TO LIMB
This command will attach the specified 3D object to a limb of another 3D object. By attaching an object to the limb of another, the
objects position, rotation and scale are entirely controlled by the limb. This technique can be used to allow a robot arm to easily grab
and lift an item, or allow your hero character to hold and wear a variety of items. The parameters should be specified using integer
values. An additional parameter allows a specific type of glue operation:
0 - regular glue object to a limb (default behaviour)
1 - wipe out frame orient, leaving position only (avoid hierarchy frame problems)
2 - wipe out child object position for accurate limb location placement
Syntax
GLUE OBJECT TO LIMB Object Number, Second Object, Limb Number
GLUE OBJECT TO LIMB Object Number, Second Object, Limb Number, Glue Mode
"
Hit F1 on blank area of code, or use 'Help Contents' in menu and there is loads of help for 99.9% of commands
Best way is to goto main help page, then 'commands' and then relevant section. So 'Basic3D' has all the 3d commands, including GLUE OBJECT TO LIMB
Maybe your update did not install correctly and you are missing the help files.
Boo!